Can You Guess the Celebrity in This Yearbook Photo?

Long before she learned how to 'roar,' this singer was mugging for the camera! Even way back when, she radiated sweetness!

Nowadays, the star can be spotted promoting her new album. The record is her most personal ever, documenting a failed high-profile relationship and her journey to greater self-confidence. Don't worry about the haters bringing her down, though -- she's learned to stand up for herself and isn't afraid to show it!

Think you know who it is? Click through to find out.